Does childbirth increase your chance of breast cancer? Yes. But it also decreases it in the longterm ...depending on how old you are your first time around. It has to do with your hormones like estrogen and the damaged DNA in your...

Hank revisits his passion for exploring the Red Planet, breaking down the two biggest challenges of sending humans to Mars: radiation and propulsion. He explains the science behind the obstacles future Mars-bound astronauts...

"It wouldn't surprise me if you're holding up something to your head that you could get some radio waves."

"I try not to sleep with it right by my head and when I'm on the phone I use my spea
ker."
If you're like me,...

Howcast - Alarmed by news reports that cellphones could possibly cause brain tumors? Here's what we know so far.

There’s a lot of buzz around beauty products and how the chemicals in them may affect hormones, and thus contribute to the development of certain cancers. How much weight should we give to studies that report these associations?

More money is spent on treating cancer than preventing it within the United States. However, scientists are getting closer to finding out if cell growth within our bodies promotes already existing cancer. Scientists are examining...